On an everyday basis, copper tops can be cleaned with soap and water.  They will oxidize and patina and can be maintained in this state.  The tops can also be polished with a polishing compound to produce a very high luster.  Applying the polish is like waxing a car; move along in sections about 2’ x 2’.  Most clients do not polish at all; they maintain the tops with a patina that constantly changes.  The ultimate look and maintenance schedule is a matter of preference and convenience.