1)
What is the meaning of "va'Yanach"?
1.
Rashi: He refrained from weighing them.
2.
Targum Yonasan: He hid them. Radak - i.e. he took them from where they were made, to their place in the Beis ha'Mikdash.
3.
Malbim: In Divrei ha'Yamim II, 4:18 it says "va'Ya'as". He made more than were needed; [the extras] would be kept in the storehouse of the Beis ha'Mikdash, to be ready for when they will be needed in the future.