HALF MOON BAY, Calif.— A second body has been recovered 10 days after a plane crash off the coast of Half Moon Bay killed four Bay Area residents, authorities said. The body of 26-year-old Cassidy Rae Petit, an Oakland resident who recently moved from Vermont, was spotted floating in the ocean near Ross’ Cove in Moss Beach, according to the San Mateo County Coroner’s Office. That site is about two miles south of where the single-engine aircraft she was riding in was seen falling out of the sky the evening of Jan. 14. Petit’s remains were transferred to the harbor master at Pillar Point Marina …