A Mercer County restauranteur has been charged with sexually assaulted at least four women, including a job applicant he plied with drinks until she passed out and three former employees, authorities said Thursday. Gerald Araya, 44, of Ewing, was arrested Wednesday at the Mill Hill Restaurant & Lounge, one of the three restaurants he owns in Trenton, the Mercer County Prosecutor’s Office said Thursday. Araya also owns the El Catador Lounge Restaurant and Dubai Restaurant & Lounge. An attorney for Araya was not available on Thursday for comment. The investigation began after a woman told police…