The Answer:

Here are the numbers you are looking for regarding the Statue of Liberty (not including its base).

• Weight of copper used in statue: 100 tons
• Weight of steel used in statue: 125 tons
• Total weight used in statue: 225 tons

Here is how other famous U.S. landmarks and monuments weigh in:

• Tomb of the Unknown Soldier: 79 tons
• St. Louis Arch: 5,199 tons
• Hoover Dam: 6,600,000 tons

On a related note, here's a list of national monuments.

—The Fact Monster