Amazon has submitted plans for a large-format store near Chicago that would be larger than a Walmart Supercenter, marking the latest experiment with physical retail for the tech company.As part of the plans, Amazon has proposed building a one-story, 229,000-square-foot building in Orland Park, Illinois, that would offer a range of products, such as groceries, household essentials and general merchandise, the city said on Saturday. By comparison, Walmart's U.S. Supercenters typically average 179,000 square f ...