Other comments not withstanding, copper (real copper, not "Hollywood glitter") is a very typical kitchen material - both ancient and up-to-date.
Besides bar tops, another typical use is to bond a 4'x8' piece of copper to the same sized plywood sheet. Then, a combination of metal railing and copper hooks is used to hang iron skillets, pots and pans, and the like.
It's quite handsome, and the copper is such that one can easily hang a still hot iron skillet up and the heat has no ill effect.
Copper is one of the most recycled materials the world has ever seen. In recent years well over half the copper consumed in the United States has been derived from recycled scrap, and this percentage has grown somewhat over the last two decades. About 55% of this scrap in recent years has been "new" scrap, such as turnings from screw-machined rod, and 45% has been "old" scrap, such as used electrical cable or auto radiators.
It's also possible that some of the copper used today was first mined out of the earth over 5000 years ago, because copper was literally the very first metal that humans came into contact with. As such, every single application made, was made out of copper.