Exodus 25:3

25:3 This is the offering you ¹  are to accept from them: gold, silver, bronze,

Exodus 30:28

30:28 the altar for the burnt offering and all its utensils, and the laver and its base.

Exodus 31:9

31:9 the altar for the burnt offering with all its utensils, the large basin with its base,

Exodus 38:29

38:29 The bronze of the wave offering was seventy talents and 2,400 shekels. ² 

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¹ tn The pronoun is plural.

² sn The total shekels would have been 212,400 shekels, which would be about 108,749 oz. This would make about 2.5 to 3 tons.