Copper is the metal commonly used in electrical wiring due to its excellent conductivity of electricity. It has a low resistance and high conductivity, making it ideal for efficiently transporting electrical energy. Additionally, copper is durable and malleable, allowing it to be easily shaped into wires. Other metals, such as aluminum, are also used in wiring, but copper remains the preferred choice for residential and commercial electrical systems. The properties of copper help ensure that electrical systems operate safely and effectively, reducing the risk of overheating and electrical failures.