Here's why:

* Room Temperature: Copper has a melting point of 1084.62 °C (1984.32 °F), which is significantly higher than room temperature.

* Found in Nature: Copper is found in nature as a solid mineral, usually in the form of ores like chalcopyrite (CuFeS2), chalcocite (Cu2S), or bornite (Cu5FeS4).

Therefore, copper exists as a solid under normal conditions.