July 25 — There may be a big deal stirring in candy land. The trust that controls Hershey Foods Co., an American icon that is the nation’s largest candy and chocolate maker, is exploring a sale of the company, it said in a press release Thursday. Sources familiar with the matter said such a deal could fetch more than $10 billion. For years, the storied company has been a bystander during a food-industry consolidation, widely regarded as untouchable because of the trust’s loyalty to its mission and its hometown of Hershey, Pa. But now tumult in the corporate world has...