Tokyo stocks opened lower Wednesday, tracking an overnight decline on Wall Street, while investors adopted a wait-and-see attitude ahead of the outcome later in the day of the U.S. Federal Reserve’s policy meeting. In the first 15 minutes of trading, the 225-issue Nikkei Stock Average fell 168.33 points, or 0.44 percent, from Tuesday to 38,237.33. The broader Topix index was down 14.60 points, or 0.53 percent, at 2,728.57. On the top-tier Prime Market, decliners were led by oil and coal product, securities and mining issues. At 9 a.m., the U.S. dollar fetched 157.75-76 yen compared with 157.76…