Copper's melting point is 1083 degrees Celsius. Assuming you have a stove capable of exceeding that temperature, you can melt copper on your stove to use in castings for fishing bobbers or other decorative pieces in your home. Many propane stoves can reach temperatures in excess of the melting point for copper.
Place the cast iron skillet onto the burner and turn the burner on to full heat. Heat the skillet for a period of 15 to 20 minutes to allow time for the skillet to heat up.
Place small copper pieces into the skillet. Use pieces such as cut up copper sheeting. Place a lid onto the skillet.
Stir the copper as it starts to soften to help keep it mixed. Check the copper every few minutes and stir it until it completely liquefies.
Wear gloves to protect yourself from the heat of the stove. Wear eye protection and a face mask to protect yourself from gases released by heating the copper. Use an oven that does not cycle from hot to cold during operation. If the burner continually goes into a cooling cycle, it can cause the copper to fail to reach melting temperature.