*Spot gold had edged down 0.2 percent to $1,682.51 an ounce by 0032 GMT, off a one-month peak of $1,695.76 hit on Tuesday. *The U.S. House of Representatives on Wednesday passed a Republican plan to allow the federal government to keep borrowing money through mid-May, clearing it for fast enactment after the top Senate Democrat and White House endorsed it.