The following uses for copper are gathered from a number of sources as well as from anecdotal comments. I'd be delighted to receive corrections as well as additional referenced uses (please use the feedback mechanism to add uses).
- coinage metal
- copper compounds such as Fehling's solution are widely used in analytical chemistry in tests for sugar
- the electrical industry is one of the largest users of copper
- copper sulphate is used as an agricultural poison, and water purifier