With the Pauling bathroom copper sink the faucet typically mounts directly to the counter top. This sink is also designed to work well as an undermount or top mount.
Either the Sinkology P15-AC or G15-AC.
Clean copper sinks with only a drop of dish soap, warm water, and a soft cloth. Keep soap, cleaning chemicals, and tooth paste off of the sink. If the copper turns shiny be sure to clean the spot well with water and soap and rinse the area to get any remaining residue off of the sink. Wash the shiny area twice a day with warm water and use the sink as regular, the shiny area will darken up over time and use. If the shiny area isn't darkening, clean the area with a green scouring pad and warm water, then apply a bit of fresh hydrogen peroxide on the shiny spot. It will darken up in a few minutes as the hydrogen peroxide evaporates on the copper. After a few days of regular use the copper will blend together with the rest of the sink.