Well what exactly are you looking to know about Copper? Heres some random facts I can think of:
Copper is a redish metal. It has very high conductivity. It is insoluable in Water. Copper is essential in a healthy diet, it is need for red blood cells as well as bones. When Copper is powdered, it stains clothes and anything else it comes in contact with. Copper is a transition metal.
And heres some links, which cover the different aspects of copper:
Copper in a diet http://www.anyvitamins.com/copper-info.htm
Practical use of Copper http://www.copper.org/
Wikipedia defintion of Copper http://en.wikipedia.org/wiki/Copper