When we built our house we wanted to do our kitchen counters in copper. Because we were over budget, we couldn't do it. It's a future upgrade though.
Copper and zinc has been used for years for countertops. They are antimicrobial which is a nice asset. Attaching them is generally done with a good construction adhesive. As far as trimming the edges - that's up to you. You can have the material bent or perhaps trim it with a wood similar to your cabinets. Care of the tops is up to you as well. Keep in mind that if you want them all shiny then you will either have to coat/seal them or you will be polishing. My wife and I like the more rustic look and will hopefully allow the copper to patina out over time. Also keep in mind that copper is soft and will scratch by placing pots, cleaning with scrub pads etc... With everyday use, it will be hard to keep them pristine.
Keep in mind this is a high end feature. When we priced out copper ( just the material) it was about the same as a top end granite installed.
Last edited by JB97031; 03-30-2012 at 11:45 AM.