What are "Keforei"?
Rashi: They are buckets (Ibn Ezra - to collect blood of Korbanos). This is an expression of cleaning, like 'Kapar Yadei bi'Glima d'Chavrei'. One who received blood in the bucket, he cleaned drops of blood that spilled on his hand on the brim of the bucket.
What are "Adarchonim"?
Rashi: They are coins. There were 1000 of them in these 20 gold buckets. Ibn Ezra - the Aleph is extra.
Malbim: The buckets were worth 1000 Adarchonim.
What is the meaning of "Mutzhav"?
Rashi #1: It is yellowish 1 copper.
Rashi #2: It is a kind of copper coin.
Ibn Ezra: It is polished.
Tzahov is yellow. (PF)
Is "Tovah" an adjective?
Rashi: Yes; it is feminine. Ibn Ezra - masculine (Mutzhav) and feminine adjectives are used for the same matter, like the Seifa "Shenayim Chamudos", and "Ru'ach Gedolah v'Chazak."
Malbim: Yes. It refers to Nechoshes (copper); it is feminine. Mutzhav (masculine) refers to "u'Chlei" 1 .
If so, it should say Mutzhavim (plural)! (PF)
What were two?
Rashi: The [copper] Kelim.
What does "Chamudos" refer to?
Rashi: It refers to the Kelim; this is feminine.
