There shall be a Mayor elected at large by the qualified voters of the City who shall serve as a member and the presiding officer of the Council and shall perform such other duties as provided by this Charter or by law. The Mayor shall serve for a term of four (4) years beginning on July 1st following his or her election and continuing until June 30 following the next mayoral election. Any vacancy in the office of Mayor shall be filled by appointment by the remaining members of the Governing Body of one of its members to serve for the unexpired term.