There shall be 60 square feet of operating area for each machine, inclusive of the area occupied by such machine. In the event that the floor area occupied by any particular machine exceeds 10 square feet, the area required for that particular machine shall increase so that the area surrounding such machine shall contain a minimum of 50 square feet, the total square footage of machine area and floor area to equal 60 square feet, as if that machine were the only machine in the establishment. The calculation of the operation area shall exclude any area of the premises devoted to a use not directly essential to the operation of the amusement machine. However, there shall not be allowed as an accessory use more than six amusement machines as defined in §
169-4, entitled "Definitions," of Chapter
169, Land Use Administration and Procedures, of the Code of the Borough of Rockaway, New Jersey.