The chemical symbol for the element copper is "Cu." This symbol derives from the Latin word "cuprum," which refers to the metal that has been used for thousands of years in various applications, including electrical wiring, plumbing, and coins. Copper is a ductile and malleable metal known for its excellent conductivity of electricity and heat. Its distinctive reddish-brown color makes it easily recognizable. Additionally, copper is an essential trace element in human nutrition, playing a vital role in several biological processes such as iron metabolism and the development of connective tissues.