An electrolytic cell is a device that uses electrical energy to drive a non-spontaneous chemical reaction. It consists of two electrodes: an anode and a cathode, immersed in an electrolyte solution. When a direct current is applied, positive ions move toward the cathode, where they gain electrons and undergo reduction, while negative ions move toward the anode, where they lose electrons and undergo oxidation. These cells are commonly used in processes like electroplating, where a metal is deposited onto a surface, and in the production of chlorine and hydrogen gases through the electrolysis of water. The efficiency and control of these reactions make electrolytic cells important in various industrial applications.