It could be used as a table top for a whiskey barrel provided it is properly supported from an engineering point of view.
LAAC, Cool idea for a unique project that should allow you to carry gear safely and while protected from the elements. Regarding the plywood standing up to the elements, we suggest that you read through the warranty that is on the product page in the boxed-off section titled "Info & Guides" to assist you in making that decision.
Momof5, We do not recommend the use of a conventional multi-coat paint system or varnish. The performance is nearly always disappointing, and repainting often has to be preceded by scraping and sanding. By nature of its make-up, pressure-treated lumber does not need protection from the elements. If you are set on painting the wood, though, the best paint to use for pressure treated wood is a high-quality, exterior latex.
I rather doubt it unless you use special plywood like D-Blaze or Fire Pro that have been treated to be fire resistant.
No, problems that I know of. I also bought vinyl linoleum and covered the bottom of the coop with it. Clean-up is much easier.
When directly exposed to the outside elements, plywood will eventually disintegrate, though the process might take longer with pressure treated plywood. Solar panels, whether ground mounted or roof mounted, are usually supported by aluminum brackets which are better suited to the outdoors environment. Plywood makes an excellent roof deck provided it is covered by a membrane and then a roof.
Brazil- stamped on the wood
Yes, this plywood can be used as subfloor in a bathroom as long as the plywood is compliant with your local building codes.