The depth of the potential well for free electrons in a metal can be accuratelydetermined by observing that the photoelectric work function is the energy necessary toremove an electron at the top of the occupied states from the metal; an electron in sucha state has the Fermi energy. Assuming each atom provides one free electron to the gas. Compute the depth of the well for the free electrons in gold. The work function for goldis 4.8 eV.