Electrolytic cells are devices that use electricity to drive a chemical reaction. They consist of two electrodes, an anode and a cathode, submerged in an electrolyte solution. When an electric current is applied, it causes ions in the electrolyte to move towards the electrodes, leading to chemical changes. This process is essential in applications like electroplating and the production of chemicals such as chlorine and hydrogen. In an electrolytic cell, the anode is where oxidation occurs, while reduction takes place at the cathode. The energy supplied by the electric current overcomes the natural tendency of the reaction, allowing it to proceed. This principle is crucial in industries that rely on electrochemistry for manufacturing and refining processes.